Home / 13,711.55-20,565.71-3,851.66

Finding the Fourth Proportional to 13,711.55, 20,565.71 and 3,851.66

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Solution

The fourth proportional to 13,711.55, 20,565.71 and 3,851.66 is: 5,777.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,711.55 : 20,565.71 = 3,851.66 : x
  2. Step 2: Convert to fraction form
    13,711.55/20,565.71 = 3,851.66/x
  3. Step 3: Cross multiply
    13,711.55x = 20,565.71 × 3,851.66
  4. Step 4: Simplify right side
    13,711.55x = 79,212,169.18
  5. Step 5: Solve for x
    x = 79,212,169.18/13,711.55
  6. Step 6: Final answer
    x = 5,777.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.